name: UI Translations

on:
  pull_request:
    paths:
      - "client/ui/i18n/locales/**"
      - "client/ui/i18n/check-translations.mjs"
      - ".github/workflows/ui-translations.yml"
  push:
    branches:
      - main
    paths:
      - "client/ui/i18n/locales/**"
      - "client/ui/i18n/check-translations.mjs"

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.head_ref || github.actor_id }}
  cancel-in-progress: true

jobs:
  check-translations:
    name: Check translation key parity
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: "22"

      # English (en) is the source of truth for translation keys; every other
      # locale declared in _index.json must carry the exact same key set.
      - name: Check translation key parity
        run: node client/ui/i18n/check-translations.mjs